What do you mean "if"?
Also, the answer is hang some curtains and watch netflix, pondering Friday lazy dinner.
Gee, a lot of work here.... I would have to cast the best devil, then find another Dante caliber to build the greatest hell ever, with the state of the art psychological torture ever conceived, the most horrific facilities and all that crap. With all that in place then brainwash everyone into love me as the greatest loving father has ever been and threat everyone with the alternative in case they don't get the memo. So, no... too much freaking work ???
Change a few laws of Physics like, allow perpetual motion machines, eliminate speed limit on light and particles, create an anti-gravity force and bring back dinosaurs. Then sit back with a latte and watch the chaos unfold.